| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be used [prep] [adj] | 210 |
|
| 2 | [vb -s] [prep] be [prep] [adj] | 136 |
|
| 3 | [vb -s] be used [prep] [adj] | 83 |
|
| 4 | [vb -s] [prep] be used [prep] | 53 |
|
